Features of the Line-contact Seismic Isolation Bearing

• 1、China metallurgical construction group Qinhuangdao Metallurgical design research the total institute

Abstract：The fact is undeniable that buildings of masonry structure were seriously damaged in previous strong earthquakes. At present, the "anti-seismic" method is still adopted for fortification in multi-storey buildings of masonry structure, and especially when the actual seismic intensity is greater than the designed seismic intensity, hard-won houses will bear varying degrees of damage. Therefore, it is urgent to apply matched and feasible seismic isolation technology to the design of urban and rural masonry houses. Line-contact seismic isolation bearings have been designed based on the basic principle of stable equilibrium, and many characteristics of the line-contact seismic isolation bearings have been revealed by analyzing engineering examples. Especially, the line-contact seismic isolation bearings reasonable in size and of the same specification apply to all seismic intensities. Thus, buildings will remain largely intact under "horizontal seismic action" of any seismic intensities.

Keywords： Stableequilibrium Rolling friction；Non-destructive energy consumption